I basically did this to my stock v7, same look without the Xperion meme.
I used Xposed framework with Gravity Box, and the paid version of Xposed XGELS.
I bet it's pretty much the same rom now. I debloated the phone using NoBloat Free. The XGELS module, paid version lets you theme the GEL, aka the Google Now Launcher with any Nova/APEX theme icons.
The Xposed AOSP Lock screen module let me put that on it. Only thing I don't have is the CM apps, nor do I have the Qslides app deactivated. XGELS lets you change the Google Now dock to Android L style without messing with the build.prop file.
Added our Overclock V4 kernel and this thing is smoking. Gravity Box let me activate the Soft Keys/Nav Bar. Button Remapper let me reassign my capacitive back/menu buttons to other things. One of the modules, can't remember witch, let me change the action of the home button too.
UPDATE: I just changed my status bar icons to kitkat style white, and also can change the color of the status bar itself.
Pimped out.